CN115009380A - Floor structure and vehicle before automobile body - Google Patents
Floor structure and vehicle before automobile body Download PDFInfo
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- CN115009380A CN115009380A CN202210850110.1A CN202210850110A CN115009380A CN 115009380 A CN115009380 A CN 115009380A CN 202210850110 A CN202210850110 A CN 202210850110A CN 115009380 A CN115009380 A CN 115009380A
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- seat
- floor
- cross
- upper cover
- threshold
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- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 238000012546 transfer Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 description 14
- 238000003466 welding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention discloses a vehicle body front floor assembly which comprises a floor body structure, and a plurality of seat cross beams and a plurality of front longitudinal beam upper cover plates which are arranged on the floor body structure, wherein the front longitudinal beam upper cover plates are connected with the seat cross beams and a front cabin cross beam, so that part of energy generated after collision is transmitted to the seat cross beams. According to the vehicle body front floor assembly, the reasonable collision energy transfer path is arranged, so that the pouring amount and the pouring speed of the front baffle plate can be reduced, the safety of passengers can be effectively protected, the pouring of the vehicle body structure deformation to the power battery pack can be effectively reduced, and the battery pack is protected from being excessively extruded during collision. The invention also discloses a vehicle.
Description
Technical Field
The invention belongs to the technical field of automobile body structures, and particularly relates to a front floor assembly of an automobile body and an automobile.
Background
The existing front floor structure of the electric automobile cabin does not generally support the installation requirements of a multifunctional seat (such as adding a 180-degree rotation function on the basis of XYZ six-direction adjustment) and a multifunctional auxiliary instrument desk (such as adding a front-back sliding function on the basis of fixing the instrument desk), and when the functions of the automobile passenger cabin are diversified, more comfortable driving experience can be provided for passengers on the automobile.
In the prior art, the front floor structure of an electric automobile is realized by modifying the front floor structure of a traditional fuel vehicle, and the three-way arrangement of the fuel vehicle needs to give way to the original fuel vehicle platform, so that part of the structure is unreasonable, a battery pack can be invaded by a hard object after collision, so that fire and combustion are caused, and the safety is poor; and the structure of the fuel vehicle-to-electric vehicle has larger restriction on battery endurance.
The front floor structure of a part of electric automobiles in the industry is developed on a brand-new platform, but the generalization degree of parts in the platform is not high, so the replacement development cost is high, and the replacement period is relatively long.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. The invention provides a vehicle body front floor assembly, aiming at improving the collision safety.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the vehicle body front floor assembly comprises a floor body structure, a plurality of seat cross beams and a plurality of front longitudinal beam upper cover plates, wherein the seat cross beams and the front longitudinal beam upper cover plates are arranged on the floor body structure, and the front longitudinal beam upper cover plates are connected with the seat cross beams and a front cabin cross beam, so that part of energy generated after collision is transmitted to the seat cross beams.
The cross section of the front longitudinal beam upper cover plate is M-shaped, and two cavity bodies are arranged inside the front longitudinal beam upper cover plate.
One end of the front longitudinal beam upper cover plate is connected with the front cabin cross beam, the other end of the front longitudinal beam upper cover plate is connected with the seat cross beam, and the front longitudinal beam upper cover plate and the front cabin cross beam are surrounded to form two cavity bodies.
The front floor assembly of the automobile body further comprises a plurality of middle channel front reinforcing plates arranged on the floor body structure, the front longitudinal beam upper cover plates are arranged, the middle channel front reinforcing plates are located between two adjacent front longitudinal beam upper cover plates, and the middle channel front reinforcing plates are connected with the front cabin cross beam, so that part of energy generated after collision is transmitted to the seat cross beam.
The middle channel front reinforcing plate comprises a first side connecting part, a second side connecting part and a middle connecting part, wherein the middle connecting part is connected with the first side connecting part and the second side connecting part and is positioned between the first side connecting part and the second side connecting part, and the lightening hole is positioned between the first side connecting part and the second side connecting part.
The seat cross beams are arranged in two or three, and all the seat cross beams are sequentially arranged along the length direction of the floor body structure.
The main body section of the seat beam is of an M-shaped structure with a uniform section and is made of rolled super-strong plates.
The seat is characterized in that the number of the seat cross beams is two, the two seat cross beams are respectively a front cross beam and a rear cross beam, the cross section of the rear cross beam is in a shape like a Chinese character 'ri', and a plurality of mounting supports are arranged on the front cross beam.
The vehicle body front floor assembly further comprises two threshold structures arranged on the floor body structure, the seat cross beam is located between the two threshold structures, two ends of the seat cross beam are connected with the two threshold structures respectively, the threshold structures comprise threshold bodies and threshold stiffening beams, the cross sections of the threshold bodies are U-shaped, and the cross sections of the threshold stiffening beams are in a shape like a Chinese character 'mu'.
The invention further provides a vehicle which comprises the vehicle body front floor assembly.
According to the vehicle body front floor assembly, the reasonable collision energy transfer path is arranged, so that the pouring amount and the pouring speed of the front baffle plate can be reduced, the safety of passengers can be effectively protected, the pouring of the vehicle body structure deformation to the power battery pack can be effectively reduced, and the battery pack is protected from being excessively extruded during collision.
Drawings
FIG. 1 is an exploded schematic view of a front floor assembly of the vehicle body of the present invention;
FIG. 2 is a cross-sectional view B-B of FIG. 1;
FIG. 3 is a schematic structural view of the front floor assembly of the vehicle body of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic structural view of an upper cover plate of the front longitudinal beam;
FIG. 6 is a schematic structural view of a center tunnel front stiffener plate;
FIG. 7 is a schematic view of the front cross member;
FIG. 8 is a schematic structural view of the rear cross member;
fig. 9 is a structural schematic view of a threshold structure;
FIG. 10 is a structural schematic view of a battery middle mounting structure;
FIG. 11 is a schematic structural view of a floor body structure;
FIG. 12 is a schematic structural view of a front floor assembly of a vehicle body according to a first embodiment;
FIG. 13 is a schematic structural view of a floor assembly in front of a vehicle body according to a second embodiment;
FIG. 14 is a schematic structural view of a front floor assembly of a vehicle body according to a third embodiment;
FIG. 15 is a schematic view of the connection of the bottom of the front floor to the battery;
the labels in the above figures are: 1. a front longitudinal beam upper cover plate; 2. a mid-channel front stiffener; 3. a front cross member; 4. a rear cross member; 5. a threshold structure; 6. a battery middle mounting structure; 7. a floor body structure; 8. a front deck beam; 9. a seat cross member; 201. a first side connection portion; 202. a second side connection portion; 203. an intermediate connecting portion; 501. a threshold body; 502. the sill reinforces the beam.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration, various embodiments of the invention which may be practiced in different forms and not limited to the embodiments described herein, but on the contrary, the embodiments are provided so as to provide a more thorough and complete disclosure of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "up", "down", and the like are used herein for descriptive purposes only.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, the present invention provides a vehicle body front floor assembly, which includes a floor body structure 7, and a plurality of seat cross members 9 and a front side member upper cover plate 1 which are arranged on the floor body structure 7, wherein the front side member upper cover plate 1 is connected with the seat cross members 9 and a front cabin cross member 8, so that part of energy generated after collision is transmitted to the seat cross members 9, and a power battery pack is installed below the floor body structure 7.
Specifically, the invention provides a front floor assembly of an electric platform, which has multifunctional cabin compatibility; the battery safety protection is excellent; sufficient arrangement space can be provided for the long-endurance battery; and parts of multiple vehicle types on the same platform have high universality, the development and upgrading period is short, and the cost is low.
As shown in fig. 1, 2 and 5, the front side member upper cover plate 1 is located inside the passenger compartment, the front side member upper cover plate 1 is disposed at the front end of the floor body structure 7, the front side member upper cover plate 1 is located on the top surface of the floor body structure 7, the front side member upper cover plate 1 is fixedly connected with the floor body structure 7, the floor body structure 7 is horizontally disposed, the length direction of the floor body structure 7 is parallel to the length direction of the vehicle body, and the width direction of the floor body structure 7 is parallel to the width direction of the vehicle body. The cross section of the front longitudinal beam upper cover plate 1 (the cross section is the cross section vertical to the length direction of the front longitudinal beam upper cover plate 1) is M-shaped, two cavity bodies are arranged inside the front longitudinal beam upper cover plate 1, the two cavity bodies extend along the length direction of the front longitudinal beam upper cover plate 1 and are sequentially arranged along the width direction of the front longitudinal beam upper cover plate 1, and the width direction of the front longitudinal beam upper cover plate 1 is parallel to the width direction of the floor body structure 7.
As shown in fig. 1, 2 and 5, one end of the front longitudinal beam upper cover plate 1 is fixedly connected with the front cabin cross beam 8, the other end of the front longitudinal beam upper cover plate 1 is fixedly connected with the seat cross beam 9, the front longitudinal beam upper cover plate 1 and the front cabin cross beam 8 surround to form two cavity bodies, the two cavity bodies are respectively located in a first cavity and a second cavity, the first cavity is located above the second cavity, and the first cavity and the second cavity are box-shaped cavities. The length direction of the front cabin cross beam 8 is parallel to the width direction of the floor body structure 7, the front cabin cross beam 8 is fixedly connected with the end parts of the front longitudinal beam upper cover plates 1, the front longitudinal beam upper cover plates 1 are fixedly connected with the front cabin longitudinal beams, and the length direction of the front cabin longitudinal beams is parallel to the length direction of the floor body structure 7. The front longitudinal beam upper cover plate 1, the front cabin cross beam 8 and the front cabin longitudinal beam are connected to form a stable supporting structure, partial energy can be transmitted to the seat cross beam 9 and a frame structure of the power battery pack in the collision process, the effect of reducing the pouring amount and the pouring speed of a front baffle (the front baffle structure belongs to the front cabin structure part) is achieved, accordingly, the safety of passengers can be effectively protected, the pouring of the deformation of a vehicle body structure to the battery structure can be effectively reduced, and the battery pack is protected from being excessively extruded in the collision process.
Preferably, the front longitudinal beam upper cover plate 1 is formed by stamping a high-strength plate, and is connected and fixed with the front cabin structure, the floor body structure 7 and the front seat front cross beam 3 through spot welding.
As shown in fig. 1 and 6, the vehicle body front floor assembly of the present invention further includes a plurality of center tunnel front reinforcements 2 disposed on the floor body structure 7, the center tunnel front reinforcements 2 are disposed between two adjacent front side frame upper covers 1, and the center tunnel front reinforcements 2 are connected to the front cross member 8, so that part of energy generated after collision is transmitted to the seat cross member 9. The middle channel front reinforcing plate 2 is positioned between the seat cross beam 9 and the front cabin cross beam 8, one end of the middle channel front reinforcing plate 2 is fixedly connected with the front cabin cross beam 8, and the other end of the middle channel front reinforcing plate 2 is fixedly connected with the floor body structure 7.
The middle part of the middle channel front reinforcing plate 2 is of a hollow structure, and the hollow structure can play a good weight reduction role and can fully utilize idle space. The center tunnel front reinforcement panel 2 is used to provide mounting points for the installation of boundary elements including a central control module, a dashboard cross member, and a wiring harness. The arrangement of the front reinforcing plate 2 of the middle channel can improve the collision safety. The front reinforcing plate 2 of the middle channel is mainly characterized in that the front reinforcing plate is connected with a front cabin beam 8, a power battery pack and a seat beam 9 to form a stable supporting structure, partial energy can be transmitted to the seat beam 9 in the collision process, the impact and the inclination of parts such as a motor and the like on a baffle in the frontal collision process can be reduced, the deformation of a floor body is reduced, and the effect of protecting batteries is achieved.
Preferably, the front reinforcing plate 2 of the middle channel is formed by stamping a high-strength plate, and is fixedly connected with the front cabin structure, the floor body structure 7 and the front seat cross beam 3 through spot welding.
As shown in fig. 1 and 6, a lightening hole is provided on the center tunnel front reinforcing plate 2, the center tunnel front reinforcing plate 2 includes a first side connecting portion 201, a second side connecting portion 202, and an intermediate connecting portion 203 connected to the first side connecting portion 201 and the second side connecting portion 202 and located between the first side connecting portion 201 and the second side connecting portion 202, and the lightening hole is located between the first side connecting portion 201 and the second side connecting portion 202. The middle channel front reinforcing plate 2 is of a U-shaped structure, one end of the middle connecting portion 203 is fixedly connected with the first side connecting portion 201, the other end of the middle connecting portion 203 is fixedly connected with the second side connecting portion 202, and the lengths of the first side connecting portion 201 and the second side connecting portion 202 are larger than that of the middle connecting portion 203. One end of the first side connecting portion 201 and the second side connecting portion 202 in the length direction is fixedly connected with the front cabin cross beam 8, the other end of the first side connecting portion 201 and the second side connecting portion 202 is fixedly connected with the floor body structure 7, and the middle connecting portion 203 is also fixedly connected with the floor body structure 7.
As shown in fig. 1, in the present embodiment, two front side member upper cover plates 1 are provided, the two front side member upper cover plates 1 are arranged symmetrically, the center tunnel front reinforcing plate 2 is located at a middle position of the two front side member upper cover plates 1, and the center tunnel front reinforcing plate 2 is located at a middle position in the width direction of the floor body structure 7.
Preferably, as shown in fig. 1, 3 and 4, the plurality of seat cross members 9 are provided, all the seat cross members 9 are arranged in sequence along the length direction of the floor body structure 7, the length direction of the seat cross members 9 is parallel to the width direction of the floor body structure 7, the seat cross members 9 are fixedly provided on the top surface of the floor body structure 7, and the seat cross members 9 are used for mounting seats.
As shown in fig. 1 and 9, the vehicle body front floor assembly of the present invention further includes two threshold structures 5 disposed on the floor body structure 7, the seat cross member 9 is disposed between the two threshold structures 5, and both ends of the seat cross member 9 are respectively fixedly connected to the two threshold structures 5, the threshold structure 5 includes a threshold body 501 and a threshold reinforcement beam 502, the cross section of the threshold body 501 is U-shaped (the cross section is a section perpendicular to the length direction of the threshold body 501), the length direction of the threshold body 501 is parallel to the length direction of the floor body structure 7, the threshold body 501 is fixedly connected to the floor body structure 7, the threshold reinforcement beam 502 is disposed in the inner cavity of the threshold body 501, the cross section of the rocker reinforcement beam 502 is in a cross-sectional shape (the cross section is a cross section perpendicular to the longitudinal direction of the rocker reinforcement beam 502), and the longitudinal direction of the rocker reinforcement beam 502 is parallel to the longitudinal direction of the rocker body 501. The height of the threshold reinforcement beam 502 is the same as the height of the seat cross member 9, the floor body structure 7 is located below the seat cross member 9, and the threshold reinforcement beam 502 is provided to penetrate in the longitudinal direction of the threshold body 501. Therefore, the main feature of the doorsill structure 5 is that the Z-direction (vertical direction, both the length and width directions of the floor body structure 7 are horizontal direction) arrangement position of the doorsill reinforcement beam 502 is completely consistent with the Z-direction arrangement position of the seat cross beam 9, and the entire doorsill reinforcement beam 502 penetrates the front and back of the doorsill body 501, so that the bearing capacity of the doorsill structure 5 is greatly improved, the side pillar collision can effectively transfer energy through the doorsill structure 5 and the seat cross beam 9, the arrangement front portion can cope with offset collision and direct collision, and meanwhile, the side pillar collision can also protect passengers and the power battery pack in all directions, thereby effectively improving collision safety.
Preferably, the doorsill body 501 is in a rolling uniform-section structure, and the doorsill reinforcing plate is made of a mesh-shaped extruded aluminum material. The change of the wheel base of the vehicle can be realized by the length change of the doorsill and the inner beam, so that the change can be realized without newly developing a die, and the development period is greatly reduced.
Preferably, the doorsill body 501 is formed by rolling a high-strength plate, the doorsill reinforcing plate is formed by an aluminum extrusion process, and the doorsill body 501 is fixedly connected with the front cabin structure, the upper vehicle body structure, the front cross beam 3, the rear cross beam 4 and the floor body structure 7 in a welding manner.
As shown in fig. 1 and 10, the battery middle mounting structure 6 is disposed on the floor body structure 7, the battery middle mounting structure 6 is located in the accommodating groove, the accommodating groove is formed between two adjacent seat cross beams 9, the power battery pack is mounted on the battery middle mounting structure 6, the length direction of the battery middle mounting structure 6 is parallel to the length direction of the floor body structure 7, and two ends of the battery middle mounting structure 6 in the length direction are respectively fixedly connected with the two seat cross beams 9. The battery middle mounting structure 6 is in a closed shape, a battery mounting plate is arranged in the battery middle mounting structure, the structure of the battery middle mounting structure and a cross beam arranged in the battery middle mounting structure form an integral connection, and the battery middle mounting structure plays a role in synchronously transferring energy in the collision process.
Preferably, the battery middle mounting structure 6 is formed by rolling a high-strength plate, a battery mounting plate is arranged in the battery middle mounting structure, and the battery middle mounting structure 6 is fixedly connected with the seat cross beam 9 and the floor body structure 7 through spot welding.
As shown in fig. 1 and 11, the main feature of the floor body structure 7 is that the large surface of the body is parallel to the XY main plane, which provides a foundation for the generalization of the seat cross beam 9, and the outer portion of the vehicle has no beam structure, which can provide a sufficient arrangement space for the battery, and the conventional vehicle has a middle passage, so that the front floor is easy to have structural instability during the collision of the side pillars, which causes the excessive vehicle body structure inclination and affects the side collision safety.
The floor body structure 7 is fixedly connected with the front longitudinal beam upper cover plate 1, the middle channel front part reinforcement, the seat cross beam 9, the threshold structure 5 and the battery middle part installation structure 6 in a welding mode. The floor is connected into an integral frame structure through the floor body structure 7, the front longitudinal beam upper cover plate 1, the front reinforcing structure of the middle channel, the seat cross beam 9, the threshold structure 5 and the battery middle mounting structure 6, the frame structure is simple, the multifunctional cabin can be compatible with multifunctional configurations (different vehicle types, different seats and auxiliary instrument panels), the generalization degree of parts in the platform reaches more than 90%, and the collision safety is good, so that the floor is worthy of recommendation.
The vehicle body front floor assembly with the structure has the following advantages:
1. the scene requirements of the multifunctional seat and the multifunctional auxiliary instrument desk are met through the seat beam 9 and the support structure, and the installation of the multifunctional seat and the auxiliary instrument desk is met.
2. Longitudinal force transmission and energy absorption of a vehicle body are realized through the longitudinal beam upper cover plate, the middle channel front reinforcing plate 2 and the threshold structure 5, and transverse force transmission and energy absorption are realized through the combination of the threshold, the seat cross beam 9 and the battery structure frame, so that battery safety and passenger safety are guaranteed in all directions.
Example one
As shown in fig. 12, in the vehicle body front floor assembly provided in this embodiment, two seat cross beams 9 are provided, the two seat cross beams 9 have the same structure, and the main cross section of the seat cross beam 9 adopts an M-shaped structure with a uniform cross section and is made of a rolled super-strong plate, so that the lateral rigidity is good, the collision deformation bending can be effectively prevented, the side pillar collision energy can be transmitted, the structural deformation of the floor assembly can be effectively reduced, and the battery and occupant protection effect can be achieved. The two seat cross members 9 are of a fully universal design, and the seat and dash mounting points are mounted directly on the two seat cross members 9.
The vehicle body front floor assembly of the present embodiment may be adapted to an electric SUV or MPV vehicle type. The seat crossbeam 9 structure adopts the design concepts of universalization, uniform cross section and the like, can effectively reduce the development cost, and has good safety.
Example two
As shown in fig. 13, in the vehicle body front floor assembly provided in this embodiment, three seat cross beams 9 are provided, the structures of the three seat cross beams 9 are the same, and the main cross section of the seat cross beam 9 adopts an M-shaped structure with a uniform cross section and is made of a rolled super-strong plate, so that the lateral rigidity is good, the collision deformation bending can be effectively prevented, the side pillar collision energy can be transmitted, the structural deformation of the floor assembly can be effectively reduced, and the battery and occupant protection effects can be achieved. The three seat cross beams 9 are designed to be completely universal, and the seat and auxiliary instrument board slide rail mounting points are directly arranged on the three seat cross beams 9.
The vehicle body front floor assembly of the present embodiment may be adapted to an electric SUV or MPV vehicle type. The seat beam 9 adopts the design concepts of universalization, uniform section and the like, can effectively reduce the development cost and has good safety.
In the embodiment, the seat mounted on the seat cross beam 9 is a 180 ° rotation seat, the console mounted on the seat cross beam is a slidable console, it is considered that the seat and the console are both long slide rails, and the front, middle and rear mounting points of the seat and the console slide rails are respectively mounted on the front, middle and rear three seat cross beams 9. 4 seat mounting holes and 2 sliding instrument panel mounting holes are reserved on the seat beam 9.
EXAMPLE III
As shown in fig. 14, in the vehicle body front floor assembly provided in this embodiment, two seat cross members 9 are provided, the two seat cross members 9 are the front cross member 3 and the rear cross member 4, the main section of the front cross member 3 adopts an M-shaped structure with a uniform section (the section is a section perpendicular to the length direction of the front cross member 3), the cross section of the rear cross member 4 is a japanese-character shape (the section is a section perpendicular to the length direction of the rear cross member 4), the lateral rigidity of the vehicle body is greatly increased by the structure, a side pillar collision can be effectively dealt with, a passenger and a power battery pack are protected, and collision safety can be improved. A plurality of mounting brackets are arranged on the front cross beam 3. The front longitudinal beam upper cover plate 1 and the middle channel front reinforcing plate 2 are positioned on one side of the front cross beam 3, and the rear cross beam 4 is positioned on the other side of the front cross beam 3.
The front cross beam 3 is formed by rolling a high-strength plate, the top of the front cross beam is connected with a seat mounting bracket with a closed structure, threshold connecting brackets are arranged at two ends of the front cross beam 3, and the threshold connecting brackets are fixedly connected with the threshold body 501. The front cross beam 3 is fixedly connected with the front longitudinal beam upper cover plate 1, the floor body structure 7, the battery middle mounting structure 6 and the doorsill body 501 through welding.
The main structure of the rear cross beam 4 is a closed cross section, the rear cross beam 4 is formed by rolling a high-strength plate, the cross section of the rear cross beam 4 is of a structure shaped like a Chinese character 'ri', threshold connecting supports are arranged at two ends of the rear cross beam 4, the rear cross beam 4 is fixedly connected with the threshold body 501 and the battery middle mounting structure 6 through spot welding, and the rear cross beam 4 is fixedly connected with the floor body structure 7 through welding.
The front floor assembly of the vehicle body of the embodiment can be suitable for electric car type, the front seat mounting points are arranged on the mounting brackets (4 brackets with general structures) with closed sections on the front cross beam 3, and the rear seat mounting points are arranged on the rear cross beam 4.
The invention also provides a vehicle, which comprises the vehicle body front floor assembly with the structure. The vehicle is an electric vehicle type. The specific structure of the vehicle front floor assembly can refer to fig. 1 to 14, and the detailed description is omitted here. Since the vehicle of the present invention includes the front floor assembly in the above-described embodiment, it has all the advantages of the front floor assembly.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (10)
1. Floor assembly before automobile body, including floor body structure, its characterized in that: the floor is characterized by further comprising a plurality of seat cross beams and a plurality of front longitudinal beam upper cover plates, wherein the seat cross beams are arranged on the floor body structure, and the front longitudinal beam upper cover plates are connected with the seat cross beams and the front cabin cross beams, so that part of energy generated after collision is transmitted to the seat cross beams.
2. The vehicle body front floor assembly according to claim 1, characterized in that: the cross section of the front longitudinal beam upper cover plate is M-shaped, and two cavity bodies are arranged inside the front longitudinal beam upper cover plate.
3. The vehicle body front floor assembly according to claim 1, characterized in that: one end of the front longitudinal beam upper cover plate is connected with the front cabin cross beam, the other end of the front longitudinal beam upper cover plate is connected with the seat cross beam, and the front longitudinal beam upper cover plate and the front cabin cross beam are surrounded to form two cavity bodies.
4. The vehicle front floor assembly according to any one of claims 1 to 3, characterized in that: the floor is characterized by further comprising a plurality of middle channel front reinforcing plates arranged on the floor body structure, the front longitudinal beam upper cover plates are arranged, the middle channel front reinforcing plates are located between two adjacent front longitudinal beam upper cover plates, and the middle channel front reinforcing plates are connected with the front cabin cross beam, so that part of energy generated after collision is transmitted to the seat cross beam.
5. The vehicle body front floor assembly according to claim 4, wherein: the middle channel front reinforcing plate comprises a first side connecting part, a second side connecting part and a middle connecting part, wherein the middle connecting part is connected with the first side connecting part and the second side connecting part and is positioned between the first side connecting part and the second side connecting part, and the lightening hole is positioned between the first side connecting part and the second side connecting part.
6. The vehicle front floor assembly according to any one of claims 1 to 3, characterized in that: the seat cross beams are arranged in two or three, and all the seat cross beams are sequentially arranged along the length direction of the floor body structure.
7. The vehicle body front floor assembly according to claim 6, wherein: the main body section of the seat beam is of an M-shaped structure with a uniform section and is made of a rolled super-strong plate.
8. The vehicle body front floor assembly according to claim 6, wherein: the seat is characterized in that the number of the seat cross beams is two, the two seat cross beams are respectively a front cross beam and a rear cross beam, the cross section of the rear cross beam is in a shape like a Chinese character 'ri', and a plurality of mounting supports are arranged on the front cross beam.
9. The vehicle front floor assembly according to any one of claims 1 to 7, characterized in that: the structure of the floor is characterized by further comprising two threshold structures arranged on the floor body structure, the seat beam is located between the two threshold structures, two ends of the seat beam are connected with the two threshold structures respectively, each threshold structure comprises a threshold body and a threshold stiffening beam, the cross section of the threshold body is U-shaped, and the cross section of the threshold stiffening beam is in a shape like a Chinese character 'mu'.
10. A vehicle, characterized in that: comprising a vehicle front floor assembly according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850110.1A CN115009380B (en) | 2022-07-19 | 2022-07-19 | Front floor structure of vehicle body and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210850110.1A CN115009380B (en) | 2022-07-19 | 2022-07-19 | Front floor structure of vehicle body and vehicle |
Publications (2)
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